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KROHNE BM 102 Handbook User Manual

Page 17

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BM

102

17


Electro static discharge (E.S.D.)

BM 102 non-Ex and Ex gauge electronics are shielded up to 4kV against E.S.D..

Note:

E.S.D. cannot be solved by BM102 E.S.D. protection. It is the customer’s
responsibility to avoid E.S.D. by grounding the tank, product and probe installation.


1


Danger of injury

The probe may receive an electrostatic
discharge during operation; earth the probe
by pushing it against tank wall with a
suitably isolated tool just before touching it
to avoid receiving a shock.

2

Earth the entry pipe and product.



Product deposits on the nozzle and probe

Product build-up can occur under the nozzle: this may weaken the pulse. Avoid cavities that permit
the build-up of deposits.


Tank roof deformation

Tank roofs should support loads of at least 3.5 tonnes or 7700lb for gauge installations using
Ø8mm or 0.3” (type 6) single cable probes.